Apparently, Carrying Around A Six-Inch Master Sword Is A Crime
Why did police arrest Anthony Bray?

Police arrested Anthony Bray for carrying a replica of the Master Sword from The Legend of Zelda in public. Bray claimed it was a fidget toy, but the police argued that the six-inch blade could be used as a weapon and might put others in fear of it being used against them. He was charged with possession of a bladed article in public and sentenced to four months in jail2.
What are the UK's knife laws regarding blade length?

UK knife laws state that it is illegal to carry a knife with a blade longer than three inches (7.62 cm) without a valid reason. Folding knives with a blade length up to 3 inches are generally legal to carry, but the intent and circumstances can determine the legality.
Where was Anthony Bray walking when spotted by CCTV?

Anthony Bray was walking around the center of Nuneaton, a town in England, when he was spotted by CCTV operators holding a Master Sword fidget toy.